term:

Allen Charge

allen charge n

[from the Supreme Court case Allen v. United States, 164 U.S. 492 (1896), which upheld the right of a trial judge to make such a charge]
: a charge to a deadlocked jury to make a further effort to reach a verdict esp. by each juror considering the others' opinions with deference called also dynamite charge

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.